Home Introduction Coral reef program Whales and dolphins Dugong and seagrass Publications Contact OCEAN RESOURCES CONSERVATION ASSOCIATION -ORCA
Training DWLC, Hikkaduwa Marine Park staff in Marine biology, coral reef ecology, species identification and diving skill development at Hikkaduwa, Pigeon Islands and Kalpitiya Bar-reef Marine Parks.
Training Sri Lanka Customs Biodiversity unit in Marine environmental management issues and identification of Marine protected fauna.
Annual field training for Jayawardanapura university- biology students in Marine Ecology, Identification and Management issues by Natcog/ORCA teams.
Community training and livelihood development activities at Rumassala.
Training Awareness and community development work
Nature Conservation Group
Home Introduction Coral reef program Whales and dolphins Dugong and seagrass Publications Contact
Maintenance of Coral nurseries
Newly replanted corals
Rescuing broken coral fragments to be used for replanting reef areas.
The Group have been involved in promoting sustainable Management of the Ornamental Aquarium trade and the extraction of reef fauna for export food fishery. Through surveys of extraction pressure and direct and indirect impact of marine ecosystems. campaigning to expand legal framework and policy and providing training and assistance in detections for Enforcement agencies including Sri Lanka Customs Bio-diversity unit and DWLC staff.
Promoting Sustainable Management of the Ornamental Aquarium and food fish Marine  Export Trade
Maintenance of Plant nurseries and post Tsunami coastal vegetation rehabilitation Program in Association with Neo-synthesis Research Centre (NSRC)
School awareness programs and beach cleaning activities
Rumassala Project The ORCA/Natcog teams’ involvement with the Rumassala coral reef go back to the early 1990’s when the Natcog teams conducted a 3-year intense survey of the coral reef at Buona-vista, Rumassala (now better known as Jungle beach.) to study the status and Biodiversity of the reef. the report published in 1994 and updated in 1996 recorded over 480 species of fish, about 300 species of reef invertebrate species and a live coral cover of over 70%. The survey findings became the core of the campaign to save the reef from the from the proposed Galle Harbor development project. ORCA has continued its long term involvement with the Rumassala through regular monitoring activities and is presently engaged in a experimental reef restoration activity using Reef Domes as a joint Activity with Tokyo Cement Group. The Rumassala reef report (1996) is available for free download in the publication section of this website.
Rumassala Reef Habitat and Coral cover restoration activity using reef ball structures 2020-2022 An experimental Reef Restoration activity was undertaken in Partnership with Tokyo Cement Group and DWLC to establish a restoration zone in the now highly degraded Rumassala Coral Reef. The Project was pivoted on using the Reef Ball Artificial Reef Structures developed and provided by Tokyo Cement Group as a substitute substrate which was colonized by corals rescued from locations and situations where their survival was threatened.
kayankerny reef survey and proposal for upgrade in to a marine protected area. A survey of several coral areas in the east coast was undertaken in partnership with Dilmah conservation a CSR activity of Dilmah tea…. The surveys focused on the then relatively un-known but vibrant coral reefs of Kayankerny close to Pasikuda in the South Eastern coast of Sri Lanka. Dilmah Conservation and ORCA reports and campaigning was pivotal in getting the area declared as a marine protected area under the jurisdiction of the Department of Wildlife conservation Sri Lanka
Dedicated to Protecting our seas. Introduction and Background The Ocean Resources Conservation Association (ORCA) is a non-profit organization dedicated to the study, management, conservation and restoration of Coastal and Marine environments, species and natural resources in Sri Lanka. Established in 2007 ORCA continued the work initiated by its sister organization the Nature Conservation Group ‘Natcog’- (initiated in 1992) In Research, Monitoring, Restoration, Management and campaigning for sustainable use and development of Marine Species and Environments in Sri Lanka. ORCA have been Involved in Survey, Conservation and Management of Coral reefs, Seagrass, Marine Mammals, Marine Pollution, Invasive species, Coastal development, export orientated reef species fisheries and Marine protected area and species.
Restoration of degraded Coral environments. The coastal coral reefs of Sri Lanka suffered a series of catastrophic natural coral mortality events during the last 3 decades ranging from a series of Coral Bleaching events, Storms, Tsunami and Infestations of invasive reef organisms. Currently most coastal coral reefs in Sri Lanka are in a highly degraded state with low natural recovery potential. Reefs have lost most of their live coral cover, Reef structure, Bio-diversity and Ecological functions. The Coral restoration experiments of the group were initiated in 1996 and became a core activity of the group post to the 1998 Coral Mass mortality event. The group were the pioneers in Coral reef restoration  in Sri Lanka and is still is actively involved in coral cover, reef Biodiversity and Reef Habitat restoration in Sri Lanka.  Further information of techniques used by ORCA/Natcog is available in the free publication REEF HELP GUIDE available for download in the publications section of this site.
The Bar- Reef “Left Aside for Restoration Zone” Site selection and deployment of Marker Buoys The Bar-reef which had recovered from the 1998 Coral bleaching event was caused catastrophic coral mortality due to the coral bleaching event of 2016. An activity was undertaken jointly with ORCA, ESA project of UNDP, DWC, local communities and Authorities. To Identify and demarcate a “Left aside for restoration zone” on the Bar-reef to allow the reef to recover with reduced human impacts as before. ORCA carried out surveys, Site Selection and Demarcation with specially designed Marker buoys and engaged in Habitat enrichment using Artificial Reef Structures at the site. The project was carried out in Partnership with ESA project UNDP/ DWLC 2015-1018
Introduction